Pencil.



W. H. KRELL.

PENCIL.

APPLlCATiON FlLED OCT. 2 1913.

Patented Nov. 6, 1917.

l INIHII IIHIIIHIIHIHIHIHIHIIJIMIHI WILLIAM E, KIQELL, 0F GHIGG'G, ILLINOIS.

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spe'eiaamon of Letters ramt.

Application led October 2, 1913. Serial No. 792,956.

To all whom et may concern:

Be it known that I, WILLIAM H. KRELL, a citizen of the United States, residing at Chicago, Cook county, Illinois, have invented certain new and useful Improvements in Pencils, of which the following, taken in connection with the drawing, is a description.

My invention has for its object the production of a pencil of the kind in which 'detachable leads are inserted and adapted to be adjusted through the point in the casing, so that it is always ready for use, and capable of being advanced as the lead is worn away in usmg.

A further object of my invention is to provide a device of this kind which shall be very simple and cheap in construction, and effective in operation. In the accompanying drawings I have illustrated what I now consider the preferred form of my invention, although the details as to size, shape and proportion of parts may be changed without departing from the spirit thereof, and in these drawings,

Figure l is a side elevation of my improved pencil;

Fig. 2 is a vertical sectional view of the same, taken on line 2-2 of Fig. I;

Fig. 3 is a fragmentary section taken on line 3-3 of Fig. 1;

Fig. 4 is a transverse section taken on line 4.--4 of'Fig. 1, and

Fig. 5 is a transverse section of a modified form of lead holding device'.

A is a cylindrical body or barrel, formed of metal or other suitable material, having an elongated opening a practically the entire length thereof.

B is a cone shaped cap fitting one end of the barrel, and having an opening in the apex end thereof through which the point of the lead is projected. ,B is a cap fitting over the upper end of the barrel. Extending parallel with the slot a is a row of indentations in the metal a', for a purpose hereinafter described?" Fitting in the barrel and 'slidable therein Secured in the lead holding head C andV projecting through the slot a of the barrel or casing is a thumb piece D, which is formed -movement when in, use.

preferably of metal, and by means of which the lead may be advanced or retracted in the casing as desired.

Inside of this thumb piece as shown, ris a spring d one end d of which is rigidly secured thereto. The opposite end is bent to form a pawl d2 and to extend through a small opening 0 and terminates in a button or knob c2 extending through the thumb piece. The pawl d2 is adapted to engage successively in the openings or depressions a" in the-barrel A.

When the pencil is to be used the thumb piece D is pushed forward until the point c projects from the barrel, and the pawl has engaged one of the depressions or openings a which locks it against any backward IYhen it is desired to reverse the movement the button c is raised sufliciently to disengage the pawl from its place, and it is easily moved forward until the lead or crayon is withdrawn inside the casing.

It will thus be seen that I have provided an exceedingly simple construction, one comprising few parts, quickly and readily adapted for use and one in which the lead or crayon may be very .easily renewed or changed as needed.

In Fig. 5 I have illustrated a slightly modified'` form of construction in which A represents a modified form of pencil body which is provided with a bore extending longitudinally thereof to receive the leadholding member and the lead. In this construction lead C is directly engaged by the strip of metal D forming the thumb piece by means of which the lead is advanced or withdrawn as heretofore described. The

metal forming the thumb piece is elongatedv and bent around the lead as shown in Fig. 5.

I claim In a pencil, thecombination of a barrel having an elongated opening in one side thereof and a row of depressions extending parallel with said opening, a cone-shaped cap engaging one end of said barrel and having an openingv in the apex thereof through which the lead is extended, a leadholding member in said barrel movable longitudinally thereof, a head engaging said lead-holding member extending through the aforesaid elongated opening and formed into a box-like casing serving as a thumbpiece, a spring within said thumb-piece and engaging a single depression, the end of Patented Nov. 6, 1917.

said spring projecting outside the thumbspecification in the presence of two subscribpiece for disengaging it from the depression ing witnesses. and for advancing the lead-holding member through the barrel, or for withdrawing it VVLLIAM H' KRELL 5 from the inside thereof, substantially as de- Witnesses:

scribed. WELLS GOODHUE,

In testimony whereof I have signed this CHARLES I. COBB. 

